CN112266031B

CN112266031B - Intelligent drinking water filtering working method

Info

Publication number: CN112266031B
Application number: CN202011074343.4A
Authority: CN
Inventors: 王磊; 周宝
Original assignee: Chongqing College of Electronic Engineering
Current assignee: Chongqing College of Electronic Engineering
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2023-03-28
Anticipated expiration: 2040-10-09
Also published as: CN112266031A

Abstract

The invention provides an intelligent drinking water filtering working method, which comprises the following steps: s1, starting water purification equipment, initializing the water purification equipment, and acquiring basic information of a water source and feedback information of whether each component of the equipment works normally; s2, if the water source information and the equipment information are normal, performing water quality purification treatment through a water making process, and executing S3 after the treatment is completed; s3, after water quality is purified, a water taking process is carried out, water level information is obtained, a liquid level threshold value is set, and a water taking action is executed; and S4, setting working parameters of the water body in the water taking process, and performing drinking water filtering operation through cooperative control to finish the water quality purification process.

Description

Intelligent drinking water filtering working method

Technical Field

The invention relates to the field of automatic control, in particular to an intelligent drinking water filtering working method.

Background

Along with the improvement of quality of life, the quality of water requirement of consumer to the drinking water is higher and higher, has a great deal of problem among the water body filtering process among the prior art, and it can't reach user's requirement of drinking to filter quality of water, and filtering process is complicated chaotic moreover, can cause serious puzzlement in the user's use, the problem that can not make water fast, this needs technical staff in the field to solve corresponding technical problem urgently.

Disclosure of Invention

The invention aims to at least solve the technical problems in the prior art, and particularly innovatively provides an intelligent drinking water filtering working method.

In order to achieve the above purpose, the present invention provides an intelligent drinking water filtering method, which is characterized by comprising the following steps:

s1, starting a water purifying device, initializing the water purifying device, and acquiring basic information of a water source and feedback information of whether each component of the device works normally;

s2, if the water source information and the equipment information are normal, performing water quality purification treatment through a water making process, and executing S3 after the treatment is finished;

s3, after the water quality is purified, a water taking process is carried out, water level information is obtained, a liquid level threshold value is set, and a water taking action is carried out;

and S4, setting working parameters of the water body in the water taking process, and performing drinking water filtering operation through cooperative control to finish the water quality purification process.

In the scheme, the method comprises the following steps: the S1 comprises:

s1-1, switching on a power supply of water purification equipment, starting the water purification equipment, detecting a water leakage state through a water leakage detection sensor, if a water leakage condition exists, alarming by a buzzer alarm of the water purification equipment all the time, constantly lighting an alarm indicator lamp, displaying water leakage information on a screen, and not executing a water making process and a water taking process;

s1-2, if no water leakage condition exists, starting to detect the normally open condition of the LPS1 of the water body, judging whether the LPS1 is closed after a certain time is set, if a water supply pipe of the water purifying equipment has water pressure, simultaneously opening the valve A and the valve B for a plurality of times,

s1-3, detecting the LPS1 state again, disconnecting the water supply pipe, judging that the water supply pipe has no water pressure, enabling an alarm indicator lamp to flicker all the time, enabling a buzzer to sound for a plurality of times in a short time, such as 15S-20S, displaying indication information on a screen, and having no primary water pressure, when the water supply pipe obtains the water pressure, obtaining a signal to be in a closed state, enabling the alarm indicator lamp to flicker and delay for a plurality of times, displaying that the primary water pressure is normal on the screen, closing a valve A and a valve B for a plurality of times, detecting the LPS1 state, closing the water supply pipe, judging that the water supply pipe has the water pressure, judging the water supply tank liquid level of the water purification equipment, when the water supply tank liquid level is higher than a set threshold value, enabling the set threshold value to be 70% -80%, enabling the valve A, the valve B and the LPS1 to not execute any instruction, and when the water supply tank liquid level is lower than the set threshold value, enabling the set threshold value to be 50% -70%, and executing a water making process;

s1-4, if the LPS1 of the detected water body is disconnected for more than a certain time, the alarm indicator lamp always flickers, the buzzer intermittently and briefly sounds for a plurality of times, the screen displays indication information without first-stage water pressure, when the water supply pipe obtains the water pressure, the signal is obtained to be in a closed state, the alarm indicator lamp flickers for a plurality of times, the screen displays that the first-stage water pressure is normal, and reverse osmosis cleaning is carried out; if LPS1 is closed after a certain time is set, both valve a and valve B are opened for a certain time, and then S1-3 is performed.

In the scheme, the method comprises the following steps: the S2 comprises:

s2-1, in the process of water making, if the LPS1 is disconnected, the alarm indicator lamp flickers, the buzzer alarm intermittently and briefly sounds, no primary water pressure is displayed on a screen, the water purifying equipment stops working, and if the LPS1 is closed, the alarm indicator lamp flickers for a certain time, the screen displays that the primary water pressure fault is not displayed any more;

s2-2, executing a reverse osmosis flushing instruction, simultaneously opening a valve A and a valve B, displaying the flushing execution time on a screen in the reverse osmosis flushing process, after a plurality of times of execution, after the reverse osmosis flushing is finished, displaying that the reverse osmosis flushing is finished on the screen, then executing a water making process of a water purifying device,

s2-3, if the valve A and the valve B are opened simultaneously, the reverse osmosis washing process is not executed, after waiting for a certain time, the reverse osmosis water making process is carried out, and water making operation is carried out according to two conditions;

a, delaying a certain time to start water quality detection, updating data, and displaying the last updated data of the water quality detection on a screen after the water level reaches 100%;

b, when the water quality is detected, when the reverse osmosis value reaches a set value, the set value is 30-99, an alarm indicator lamp is turned on, if the alarm lamp flickers, the reverse osmosis value represents that the reverse osmosis value is higher than the highest value of the set value or lower than the low-high value of the set value, and if the alarm lamp does not flicker, the reverse osmosis value is within the range of the set value;

s2-4, after the water making reaches a certain time, for example, 1h-2h, opening a valve B, not reading the water quality A data within 120S, and continuing the water making process and reading the water quality A data after the time is up; starting a plurality of reverse osmosis washing processes in the circulating water making process, starting a valve B after continuous water making for a certain time, and closing a checking instruction of water quality A data until all purified liquid levels are purified;

s2-5, reverse osmosis flushing setting is carried out, corresponding threshold value ranges are set for the flushing times and the flushing time, for example, the valve B is opened for 5 seconds and the valve B is closed for 10 seconds, the last opening time is defaulted for 30 seconds, the last opening time of the water purifying equipment is set for 30 seconds, for example, the default time is set for 30 seconds, if water is continuously made for 15 minutes, the valve B is opened for 10 seconds after 5 seconds, the valve B is opened for 5 seconds, the valve B is closed for 10 seconds after 5 seconds, the valve B is opened for 5 seconds and closed for 10 seconds after 5 seconds, and the valve B is opened for 30 seconds and closed after 30 seconds.

And S2-6, when the conditions A and B are executed, if the water supply tank of the water purifying device reaches a 100% full state, the LPS1 does not need to acquire corresponding data, after a certain time delay, such as 30S-50s, the valve B is opened, reverse osmosis membrane flushing operation is carried out, a reverse osmosis water making process is cancelled, the pump A, the valve A and the valve B are closed, the water making process is ended, and if the water temperature of the water supply tank is judged to be lower than a certain threshold, such as 50% -70%, the step S2-1 is executed again.

In the scheme, the method comprises the following steps: the S3 comprises the following steps:

s3-1, in the water taking process, after the liquid level of the water supply tank is lower than a certain threshold value, for example, the liquid level is 5% -10%, the water purifying equipment is stopped, when the liquid level is higher than 5% -10%, a water taking instruction is executed, the B pump and the C valve are simultaneously opened, reverse osmosis water taking is started to be executed, a certain time is counted down, for example, 600S-700S, if the liquid level of the water supply tank is lower than 5% -10% in the time period, the B pump and the C valve are simultaneously closed,

s3-2, when the liquid level is higher than 5% -10%, if a water circulation instruction is executed, after a certain time, the pump B and the water quality monitoring B are started simultaneously, the water circulation instruction is displayed on a screen, after the water circulation instruction is executed for a certain time, for example, 120S-150S, the execution of the water circulation instruction is stopped, and when the pump B and the water quality monitoring B are closed simultaneously, the water quality monitoring value at the last stop is displayed on the screen;

and S3-3, when the liquid level is higher than 5% -10%, if an UP ascending water supply instruction is executed, when the B pump, the water quality monitoring B valve and the D valve are opened simultaneously, a UP ascending water taking and water taking countdown instruction is displayed on a screen, and when the liquid level is lower than 5% -10%, when the B pump, the water quality monitoring B valve and the D valve are closed simultaneously, a water quality monitoring value when the last stop is displayed on the screen.

In the scheme, the method comprises the following steps: the S4 comprises the following steps:

s4-1, performing drinking water filtering operation through cooperative control, displaying water quality temperature and water level height and an operation state on a screen, performing a water circulation command of a water purifying device, setting a working command, completely displaying the working command, a reverse osmosis flushing command, a water tank low liquid level alarm command, a water tank high liquid level prompt command, a reverse osmosis water quality alarm command, an UP UP water taking time setting command, a water taking and water making working command log and a system time setting command;

s4-2, if a reverse osmosis flushing instruction is executed, determining whether reverse osmosis flushing is executed, if not, performing reverse flushing, if yes, closing reverse osmosis flushing, executing a confirmation instruction, opening reverse osmosis flushing, storing the execution operation in a working instruction log, if reverse osmosis flushing is executed for multiple times, closing the reverse osmosis flushing for 10S after opening the reverse osmosis flushing for 5S, then opening the reverse osmosis flushing for 30S, confirming that the next instruction is entered for reverse osmosis flushing calculation, and if the flushing frequency is 0, executing a return instruction;

s4-3, after executing the UP command for a certain time, entering a main selection menu, inputting a password command, if the password is correct, executing S4-4, and if the password is incorrect, returning to continue inputting;

and S4-4, displaying a menu switch instruction, resetting the pre-purification column, resetting the fine purification column, resetting the ultraviolet lamp, entering the next working instruction, selecting a storage key to store the set parameters, returning to the display menu switch, keying in a verification code if the password needs to be modified, and executing a UP instruction to enter a password modification interface.

In the scheme, the method comprises the following steps: the S4 further includes:

s4-6, executing a reverse osmosis washing water quality instruction, setting a reverse osmosis washing electrode coefficient, executing an instruction for changing a reverse osmosis washing electrode coefficient value, entering a next execution program after the setting is finished, executing an UP water supply water quality instruction, setting an UP water supply electrode coefficient, changing the UP water supply electrode coefficient value instruction, entering the next execution program after the setting is finished, displaying an instruction during water making, modifying a working parameter instruction during water making, entering the next execution program after the setting is finished, executing a circulation function instruction, modifying circulation working parameters of the water purifying equipment, entering the next execution program after the setting is finished, executing a temperature compensation coefficient instruction, modifying temperature compensation working parameters, entering the next execution program after the setting is finished, executing a pre-purification column alarm instruction, modifying pre-purification column alarm working parameters, entering the next execution program after the setting is finished, executing a fine purification alarm instruction, modifying fine purification alarm working parameters, entering the next execution program after the setting is finished, executing an ultraviolet lamp alarm instruction, modifying ultraviolet lamp alarm working parameters, and returning to a main menu after the setting is finished.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

through above-mentioned intelligent regulation process, can realize water purification unit's filtration operation, through the cooperative control to RO reverse osmosis washing, UP water supply instruction, temperature compensation, circulating water function, pre-purification post, fine purification and ultraviolet lamp, accomplish water purification unit's linkage work, guarantee that the output accords with the purified water that requires to reach and drink the requirement.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a general flow diagram of the present invention;

FIG. 2 is a schematic diagram of the boot process of the present invention;

FIG. 3 is a schematic view of the water producing process of the present invention;

FIG. 4 is a schematic view of the liquid level control of the present invention;

FIG. 5 is a schematic diagram of the menu operation of the present invention;

FIG. 6 is another schematic diagram of the menu operation of the present invention;

FIG. 7 is a circuit diagram of a drain drive circuit of the present invention;

fig. 8 is a circuit diagram of a fresh water pump driving circuit of the present invention;

fig. 9 is a circuit diagram of a water intake pump driving circuit of the present invention;

FIG. 10 is a circuit diagram of the liquid level detection circuit of the present invention;

FIG. 11 is a circuit diagram of a water pressure detecting circuit of the present invention;

FIG. 12 is a circuit diagram of a water leak detection circuit of the present invention;

FIG. 13 is a circuit diagram of a water quality detecting circuit of the present invention;

FIG. 14 is a circuit diagram of the operation indicating circuit of the present invention;

FIG. 15 is a circuit diagram of the fault feedback indication circuit of the present invention;

FIG. 16 is a circuit diagram of a validation instruction circuit of the present invention;

FIG. 17 is a circuit diagram of a buck chip of the present invention;

fig. 18 is a circuit diagram of a voltage regulator module of the present invention.

FIG. 19 is a system diagram of the present invention;

FIG. 20 is a circuit diagram of the controller of the present invention;

FIG. 21 is a circuit diagram of the water intake drive circuit of the present invention;

FIG. 22 is a circuit diagram of the flush drive circuit of the present invention;

FIG. 23 is a circuit diagram of a reverse osmosis water intake drive circuit of the present invention;

fig. 24 is a circuit diagram of a deionized water intake drive circuit of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1 to 6, the invention discloses an intelligent drinking water filtering method, which comprises the following steps:

s3, after water quality is purified, a water taking process is carried out, water level information is obtained, a liquid level threshold value is set, and a water taking action is executed;

Preferably, the S1 includes:

s1-1, switching on a power supply of water purification equipment, starting the water purification equipment, detecting a water leakage state through a water leakage detection sensor, judging whether water leakage occurs or not according to whether a voltage value is generated or not by the water leakage detection sensor, if the water leakage occurs, always giving an alarm by a buzzer of the water purification equipment, constantly lighting an alarm indicator lamp, displaying water leakage information on a screen, and not executing a water making process and a water taking process;

s1-2, if no water leakage condition exists, starting to detect whether water pressure exists or not, wherein the water pressure is judged by detecting the closing time of the LPS1, for example, 2S-5S, if the water supply pipe of the water purifying equipment has water pressure, simultaneously opening the valve A and the valve B for a plurality of times, for example, 120S-150S,

s1-3, detecting the LPS1 state again, disconnecting the water supply pipe, judging that the water supply pipe has no water pressure, enabling an alarm indicator lamp to flicker all the time, enabling a buzzer to intermittently and briefly ring for a plurality of times, for example, 15S-20S, displaying indication information on a screen, and not having primary water pressure, when the water supply pipe obtains the water pressure, acquiring a signal to be in a closed state, enabling the alarm indicator lamp to flicker and delay for a plurality of times, displaying that the primary water pressure is normal on the screen, simultaneously closing a valve A and a valve B for a plurality of times, detecting the LPS1 state, closing the water supply pipe, judging that the water supply pipe has the water pressure, judging the water supply tank liquid level of the water purifying equipment, when the water supply tank liquid level is higher than a set threshold, not executing any instruction, when the water supply tank liquid level is higher than the set threshold, the set threshold is 50% -70%, and when the water supply tank liquid level is lower than the set threshold, executing the water making process of S2;

s1-4, if the LPS1 of the detected water body is disconnected for more than a certain time, the alarm indicator lamp always flickers, the buzzer intermittently and briefly sounds for a certain time, for example, 15S-20S, the screen displays indication information, no primary water pressure exists, when the water supply pipe obtains the water pressure, the signal is obtained to be in a closed state, the alarm indicator lamp flickers and delays for a certain time, the screen displays that the primary water pressure is normal, and reverse osmosis cleaning is carried out; if LPS1 is closed after a set time, e.g. 2S-5S, the a and B valves are opened simultaneously for a number of times, e.g. 120S-150S, and then S1-3 is performed.

As shown in fig. 2, preferably, S2 includes:

s2-1, in the process of water making, if no water pressure is detected, the alarm indicator lamp flickers, the buzzer alarm intermittently and briefly sounds, no primary water pressure is displayed on a screen, the water purifying equipment stops working, and if the LPS1 is closed, the alarm indicator lamp flickers for a certain time, for example, 2S-5S, the primary water pressure fault is not displayed on the screen;

s2-2, executing a reverse osmosis flushing instruction, simultaneously opening a valve A and a valve B, displaying the flushing execution time on a screen in the reverse osmosis flushing process, after a plurality of times of execution, such as 60-120 min, after the reverse osmosis flushing is finished, displaying that the reverse osmosis flushing is finished on the screen, then executing a water making process of water purifying equipment,

s2-3, if the valve A and the valve B are opened simultaneously, the reverse osmosis washing process is not executed, after waiting for a certain time, such as 45S-60S, the reverse osmosis water making process is executed, and water making operation is executed according to two conditions;

a, delaying a certain time (30-40 s) to start water quality detection, updating data, and displaying the last updated data of the water quality detection on a screen after the water level reaches 100%;

s2-4, after the water making is finished for a certain time, for example, 1h-2h, opening a valve B, not reading the water quality A data within 120S, continuing the water making process and reading the water quality A data (resistivity, conductivity and heavy metal ions) after the time is up, starting multiple reverse osmosis flushing processes in the circulating water making process, after the water making is continuously finished for a certain time, opening the valve B, closing an inspection instruction of the water quality A data until the purified liquid level is completely purified;

s2-5, reverse osmosis flushing setting is carried out, corresponding threshold value ranges are set for the flushing times and the flushing time, for example, the valve is opened for 5 seconds and closed for 10 seconds, the opening time and the closing time can be set, the default time of the last opening time is 30 seconds, the default time of the last opening time of the water purifying equipment is 30 seconds, for example, the default time is 30 seconds, if water is continuously made for 15 minutes, the valve for flushing B is opened, the valve for flushing B is closed after 5 seconds, the valve for flushing B is opened again for 5 seconds and closed after 5 seconds, the valve for flushing B is opened again for 30 seconds and closed after 10 seconds as long as water is continuously made in the water making process, the valve for flushing B is opened after 15 minutes again, the valve for flushing B is closed after 5 seconds, the valve for flushing B is opened again for 5 seconds and closed after 30 seconds.

And S2-6, when the conditions A and B are executed, if the water supply tank of the water purifying device reaches a 100% full state, delaying for a certain time, such as 30S-50S, opening a valve of a washing B, performing reverse osmosis membrane washing operation, canceling reverse osmosis water making process, closing a water making pump A, a water making valve A and a valve of the washing B, finishing the water making process, and judging whether the water level of the water supply tank is lower than a certain threshold value, such as 50% -70%, and executing the step S2-1 again.

Preferably, the S3 includes:

s3-1, in the water taking process, after the liquid level of the water supply tank is lower than a certain threshold value, for example, the liquid level is 5% -10%, the water purifying equipment is stopped, when the liquid level is higher than 5% -10%, a water taking instruction can be executed, a water taking B pump and a water taking C valve are simultaneously opened, reverse osmosis water taking starts to be executed, a certain time, for example, 600S-700S, is counted down, if the liquid level of the water supply tank is lower than 5% -10% in the time period, the water taking B pump and the water taking C valve are simultaneously closed,

s3-2, when the liquid level is higher than 5% -10%, if a water circulation instruction is executed, after a certain time, a water taking B pump and water quality monitoring are started simultaneously, the water circulation instruction is displayed on a screen, after the water circulation instruction is executed for a certain time, for example, 120S-150S, the execution of the water circulation instruction is stopped, and when the water taking B pump and the water quality monitoring are closed simultaneously, a water quality monitoring value at the last stop is displayed on the screen;

s3-3, when the liquid level is higher than 5% -10%, if a water taking instruction is executed, when a water taking B pump, a water quality monitoring valve and a water taking D valve are simultaneously opened, a screen displays a water taking countdown instruction, and after the water taking B pump and the water taking D valve are closed; when the liquid level is lower than 5% -10%, when the water taking B pump, the water quality monitoring and the water taking D valve are closed simultaneously, the screen displays the water quality monitoring value when the water taking B pump, the water quality monitoring and the water taking D valve are stopped finally, and at the moment, water making action is needed.

Preferably, the S4 includes:

s4-1, filtering operation of drinking water is executed through cooperative control, water temperature, water level height and running state are displayed on a screen, a water circulation instruction of water purifying equipment is executed, a working instruction is set, the working instruction is completely displayed, a reverse osmosis flushing instruction, a water tank low liquid level alarm instruction, a water tank high liquid level prompt instruction, a reverse osmosis water quality alarm instruction, a DI water taking time setting instruction, a water taking and water making working instruction log and a system time setting instruction are set;

s4-2, if a reverse osmosis flushing instruction is executed, determining whether reverse osmosis flushing is executed, if not, performing reverse flushing, if so, closing reverse osmosis flushing, executing a confirmation instruction, opening reverse osmosis flushing, storing the execution operation, storing in a working instruction log, if reverse osmosis flushing is executed for multiple times, closing 10S after reverse osmosis flushing is opened for 5S, then opening 30S, confirming that next instruction is entered for reverse osmosis flushing calculation, and if the number of times of flushing is 0, executing a return instruction;

s4-3, after executing the UP water taking command for a certain time, entering a main selection menu, inputting a password command, if the password is correct, executing S4-4, and if the password is incorrect, returning to continue inputting;

s4-4, displaying a menu switch instruction, resetting the pre-purification column, resetting the fine purification column, resetting the ultraviolet lamp, entering a next working instruction, selecting a storage key to store the set parameters, returning to the display menu switch, if the password needs to be modified, typing in a verification code, and executing a UP instruction to enter a password modification interface;

s4-5, if the main menu is returned to and confirmed by pressing, a basic menu password instruction and a function menu password instruction are executed after a confirmation verification code is input, and if the corresponding menu password instruction does not modify the task, the main menu is returned at intervals;

s4-6, executing a reverse osmosis washing water quality instruction, setting a reverse osmosis washing electrode coefficient, executing an instruction for changing the reverse osmosis washing electrode coefficient value, finishing entering the next execution program, executing an UP water supply water quality instruction, setting an UP water supply electrode coefficient, changing the UP water supply electrode coefficient value instruction, finishing entering the next execution program after setting, displaying an instruction during water making, modifying a working parameter instruction during water making, finishing entering the next execution program after setting, executing a circulation function instruction, modifying circulation working parameters of the water purifying equipment, finishing entering the next execution program after setting, executing a temperature compensation coefficient instruction, modifying temperature compensation working parameters, finishing entering the next execution program after setting, executing a pre-purification column alarm instruction, modifying pre-purification column alarm working parameters, finishing entering the next execution program after setting, executing a fine purification alarm instruction, modifying fine purification alarm working parameters, finishing entering the next execution program after setting, executing an ultraviolet lamp alarm instruction, modifying ultraviolet lamp alarm working parameters, and returning to a main menu after setting.

As shown in fig. 7-24, the present invention further provides an intelligent drinking water filtering circuit, which includes a controller U1, wherein a power input terminal of the controller U1 is connected to a power supply output terminal of a power supply module; the data detection input end of the controller U1 is connected with the detection signal output end of the detection module; the indicating output end of the controller U1 is connected with the indicating signal input end of the indicating module; and the driving output end of the controller U1 is connected with the driving signal input end of the driving module.

The power supply module comprises a voltage reduction chip U9 and a first voltage stabilizer U8, wherein the high-voltage input end of the voltage reduction chip U9 is connected with the cathode of a twelfth diode D12, one end of a twenty-second capacitor C22 and one end of a twenty-third capacitor C23, and the other end of the twenty-second capacitor C22 and the other end of the twenty-third capacitor C23 are connected with a power ground; the anode of the twelfth diode D12 is connected with one end of the twenty-fifth wiring row P25, and the other end of the twenty-fifth wiring row P25 is connected with a power ground; the low-voltage output end of the voltage reduction chip U9 is connected with one end of the third inductor L3 and the cathode of a thirteenth diode D13, and the anode of the thirteenth diode D13 is connected with a power ground; the feedback end of the voltage reduction chip U9 is connected with the other end of the third inductor L3 and one end of a twenty-fourth capacitor C24, and the other end of the twenty-fourth capacitor C24 is connected with a power ground; the other end of the third inductor L3 is connected with the power input end of a second voltage stabilizer U7,

a power supply input end of a first voltage stabilizer U8 is connected with the other end of the third inductor L3, one end of a thirteenth capacitor C13 and one end of an eleventh capacitor C11, a power supply output end of the first voltage stabilizer U8 is connected with one end of a twelfth capacitor C12, one end of a fourteenth capacitor C14, one end of a fifteenth capacitor C15, one end of a sixteenth capacitor C16, one end of a seventeenth capacitor C17, one end of an eighteenth capacitor C18, one end of a nineteenth capacitor C19, one end of a twentieth capacitor C20, one end of a twenty-first capacitor C21 and one end of a forty-ninth resistor R49, the other end of the forty-ninth resistor R49 is connected with the anode of a third light-emitting diode LED3, and the cathode of the third light-emitting diode LED3 is connected with a power supply ground; the other end of the thirteenth capacitor C13, the other end of the eleventh capacitor C11, the other end of the twelfth capacitor C12, the other end of the fourteenth capacitor C14, the other end of the fifteenth capacitor C15, the other end of the sixteenth capacitor C16, the other end of the seventeenth capacitor C17, the other end of the eighteenth capacitor C18, the other end of the nineteenth capacitor C19, the other end of the twentieth capacitor C20 and the other end of the twenty-first capacitor C21 are all connected with the ground end of the first voltage stabilizer U8 and the power ground.

The driving module comprises one or any combination of a water making pump driving circuit, a water taking pump driving circuit, a water inlet driving circuit, a flushing driving circuit, a reverse osmosis water taking driving circuit, a deionization water taking driving circuit and a drainage driving circuit.

The control output end of a water making pump of the controller U1 is connected with the input end of a water making pump driving circuit, the control output end of a water taking pump of the controller U1 is connected with the input end of a water taking pump driving circuit, and the water inlet control output end of the controller U1 is connected with the input end of a water inlet driving circuit; the flushing control output end of the controller U1 is connected with the input end of the flushing drive circuit; the reverse osmosis water taking control output end of the controller U1 is connected with the input end of a reverse osmosis water taking driving circuit; the deionization water taking control output end of the controller U1 is connected with the input end of a deionization water taking driving circuit; the output end of the controller U1 is connected with the input end of the drainage driving circuit.

The water making pump driving circuit comprises a twenty-second resistor R22, one end of the twenty-second resistor R22 is connected with a water making pump control output end of a controller U1, the other end of the twenty-second resistor R22 is connected with a base electrode of an eleventh triode Q11, an emitting electrode of the eleventh triode Q11 is grounded, a collector electrode of the eleventh triode Q11 is connected with one end of a winding of an eighth relay K8, an anode of an eighth diode D8 and a cathode of a first light-emitting diode LED1, the other end of the winding of the eighth relay K8 and the cathode of the eighth diode D8 are connected with one end of a twenty-fifth wiring row P25, an anode of the first light-emitting diode LED1 is connected with one end of a twenty-sixth resistor R26, and the other end of the twenty-sixth resistor R26 is connected with one end of the twenty-fifth wiring row P25;

the contact point common end of the eighth relay K8 is connected with one end of the twenty-fifth wiring row P25, the normally open end of the contact point is connected with one end of the seventeenth wiring row P17, and the other end of the seventeenth wiring row P17 is connected with a power ground; the power end of the water making pump is connected with the seventeenth wiring row P17.

The water taking pump driving circuit comprises a twenty-third resistor R23, one end of the twenty-third resistor R23 is connected with the control output end of the water taking pump of the controller U1, the other end of the twenty-third resistor R23 is connected with the base electrode of a twelfth triode Q12, the emitting electrode of the twelfth triode Q12 is grounded, the collecting electrode of the twelfth triode Q12 is connected with one end of a winding of a ninth relay K9, the anode of a ninth diode D9 and the cathode of a second light emitting diode LED2, the other end of the winding of the ninth relay K9 and the cathode of the ninth diode D9 are connected with one end of a twenty-fifth wiring row P25, the anode of the second light emitting diode LED2 is connected with one end of a twenty-seventh resistor R27, and the other end of the twenty-seventh resistor R27 is connected with one end of a twenty-fifth wiring row P25;

and the contact common end of the ninth relay K9 is connected with one end of the twenty-fifth wiring row P25, the normally open end of the contact is connected with one end of the sixteenth wiring row P16, and the other end of the sixteenth wiring row P16 is connected with the power ground.

The water inlet driving circuit comprises a thirty-second resistor R32, one end of the thirty-second resistor R32 is connected with a water inlet control output end of the controller U1, the other end of the thirty-second resistor R32 is connected with one end of a thirty-first resistor R31 and a base electrode of a thirteenth diode Q10, the emitting electrodes of the thirteenth diode Q10 and the other end of the thirty-first resistor R31 are both connected with a power ground, a collector electrode of the thirteenth diode Q10 is connected with the negative electrode of a third light emitting diode LED3 and a grid electrode of a twentieth MOS tube Q20, a source electrode of the twentieth MOS tube Q20 is connected with one end of a twenty-fifth wiring row P25 and one end of a thirty-third resistor R33, a drain electrode of the twentieth MOS tube Q20 is connected with one end of a twenty-second wiring row P22, a water inlet driving signal is output by the twenty-second wiring row P22, the other end of the twenty-second wiring row P22 is connected with the power ground, and the other end of the thirty-third resistor R33 is connected with the positive electrode of the third light emitting diode LED 3;

the flushing driving circuit comprises a thirty-fifth resistor R35, one end of the thirty-fifth resistor R35 is connected with a flushing control output end of a controller U1, the other end of the thirty-fifth resistor R35 is connected with one end of a thirty-fourth resistor R34 and the base of an eleventh triode Q11, the emitter of the eleventh triode Q11 and the other end of the thirty-fourth resistor R34 are both connected with a power ground, the collector of the eleventh triode Q11 is connected with the cathode of a fourth light-emitting diode LED4 and the grid of a twenty-first MOS tube Q21, the source of the twenty-first MOS tube Q21 is connected with one end of a twenty-fifth wiring row P25 and one end of a thirty-sixth resistor R36, the drain of the twenty-first MOS tube Q21 is connected with one end of a twenty-first wiring row P21, a flushing driving signal is output by the twenty-first wiring row P21, the other end of the twenty-first wiring row P21 is connected with the power ground, and the other end of the thirty-sixth resistor R36 is connected with the anode of the fourth light-emitting diode LED 4;

the reverse osmosis water taking driving circuit comprises a thirty-eighth resistor R38, one end of the thirty-eighth resistor R38 is connected with a reverse osmosis water taking control output end of the controller U1, the other end of the thirty-eighth resistor R38 is connected with one end of a thirty-seventh resistor R37 and the base electrode of a twelfth triode Q12, the emitting electrode of the twelfth triode Q12 and the other end of the thirty-seventh resistor R37 are both connected with a power ground, the collector electrode of the twelfth triode Q12 is connected with the negative electrode of a fifth light emitting diode LED5 and the grid electrode of a twenty-second MOS tube Q22, the source electrode of the twenty-second MOS tube Q22 is connected with one end of a twenty-fifth wiring row P25 and one end of a thirty-ninth resistor R39, the drain electrode of the twenty-second MOS tube Q22 is connected with one end of a twentieth wiring row P20, a reverse osmosis water taking driving signal is output by the twentieth wiring row P20, the other end of the twentieth row P20 is connected with the power ground, and the other end of the thirty-ninth resistor R39 is connected with the positive electrode of the fifth light emitting diode LED 5;

the deionization water taking driving circuit comprises a forty-first resistor R41, one end of the forty-first resistor R41 is connected with a deionization water taking control output end of a controller U1, the other end of the forty-first resistor R41 is connected with one end of a forty-resistor R40 and the base of a thirteenth triode Q13, the emitter of the thirteenth triode Q13 and the other end of the forty-first resistor R40 are both connected with a power ground, the collector of the thirteenth triode Q13 is connected with the cathode of a sixth light-emitting diode LED6 and the grid of a twenty-third MOS tube Q23, the source of the twenty-third MOS tube Q23 is connected with one end of a twenty-fifth wiring row P25 and one end of a forty-second resistor R42, the drain of the twenty-third MOS tube Q23 is connected with one end of a nineteenth wiring row P19, a deionization water taking driving signal is output by the nineteenth wiring row P19, the other end of the nineteenth wiring row P19 is connected with the power ground, and the other end of the forty-second resistor R42 is connected with the anode of the sixth light-emitting diode LED 6;

the drainage driving circuit comprises a forty-fourth resistor R44, one end of the forty-fourth resistor R44 is connected with a drainage control output end of the controller U1, the other end of the forty-fourth resistor R44 is connected with one end of a forty-third resistor R43 and the base of a fourteenth triode Q14, the emitter of the fourteenth triode Q14 and the other end of the forty-third resistor R43 are both connected with a power ground, the collector of the fourteenth triode Q14 is connected with the cathode of a seventh light-emitting diode LED7 and the grid of a twenty-fourth MOS tube Q24, the source of the twenty-fourth MOS tube Q24 is connected with one end of a twenty-fifth wiring row P25 and one end of a forty-fifth resistor R45, the drain of the twenty-fourth MOS tube Q24 is connected with one end of an eighteenth wiring row P18, a drainage driving signal is output by the eighteenth wiring row P18, the other end of the eighteenth wiring row P18 is connected with the power ground, and the other end of the forty-fifth resistor R45 is connected with the anode of the seventh light-emitting diode LED 7.

The detection module comprises one or any combination of a water pressure detection circuit, a liquid level detection circuit and a water quality detection circuit.

The hydraulic pressure detection circuit comprises an optocoupler U2, wherein the anode of the optocoupler U2 is connected with one end of a twelfth wiring row P12 and one end of a twenty-ninth resistor R29, the other end of the twelfth wiring row P12 is connected with a power ground, the other end of the twenty-ninth resistor R29 is connected with the other end of a third inductor L3, the cathode of the optocoupler U2 is connected with the power ground, one end of an output loop of the optocoupler U2 is connected with one end of a twenty-eighth resistor R28 and a hydraulic pressure detection input end of a controller U1, and the other end of the twenty-eighth resistor R28 is connected with a power output end of a first voltage stabilizer U8; the grounding end of an output loop of the optocoupler U2 is connected with a power ground;

the liquid level detection circuit comprises a liquid level sensor U5, the working voltage input end of the liquid level sensor U5 is connected with the other end of the third inductor L3, the liquid level signal output end of the liquid level sensor U5 is connected with one end of a thirty-seventh resistor R37, the other end of the thirty-seventh resistor R37 is connected with the liquid level signal input end of a controller U1 and one end of a thirty-eighth resistor R38, and the other end of the thirty-eighth resistor R38 is connected with a power ground; the power supply ground end of the liquid level sensor U5 is connected with the power supply ground;

the water quality detection circuit comprises a double operational amplifier U6, wherein a first out-of-phase input end of the double operational amplifier U6 is connected with one end of a forty-first resistor R40 and a collector electrode of a thirteenth triode Q13, the other end of the forty-first resistor R40 is connected with the other end of a third inductor L3, an emitter electrode of the thirteenth triode Q13 is connected with a power ground, a base electrode of the thirteenth triode Q13 is connected with one end of a thirty-ninth resistor R39, the other end of the thirty-ninth resistor R39 is connected with a first water quality driving output end of a controller U1, and a first out-of-phase input end and a first output end of the double operational amplifier U6 are both connected with a driving signal input end of a first water quality detection module; the grounding end of the double operational amplifier U6 is connected with the power ground; the working voltage input end of the double operational amplifier U6 is connected with the feedback end of the second voltage stabilizer U7;

the second in-phase input end of the dual operational amplifier U6 is connected with one end of a forty-first resistor R41 and the collector of a fourteenth triode Q14, the other end of the forty-first resistor R41 is connected with the other end of a third inductor L3, the emitter of the fourteenth triode Q14 is connected with the power ground, the base of the fourteenth triode Q14 is connected with one end of a forty-second resistor R42, the other end of the forty-second resistor R42 is connected with a second water quality driving output end of the controller U1, and a second out-phase input end and a second output end of the dual operational amplifier U6 are both connected with a second water quality detection module driving signal input end; the water quality detection device comprises a first water quality detection module, a second water quality detection module, a controller and a controller, wherein the first water quality detection module and the second water quality detection module are used for detecting RO reverse osmosis water quality detection and UP ultrapure water quality detection respectively, the detection signal output end of the first water quality detection module is connected with the first water quality detection signal input end of the controller, and the detection signal output end of the second water quality detection module is connected with the second water quality detection signal input end of the controller.

The detection module further comprises a water leakage detection circuit, the water leakage detection circuit comprises a voltage comparator U4, a first comparison signal input end of the voltage comparator U4 is connected with one end of a fifteenth wiring row P15 and one end of a seventh capacitor C7, the other end of the seventh capacitor C7 is connected with a power ground, the water leakage detector is connected through the fifteenth wiring row P15, the other end of the fifteenth wiring row P15 is connected with one end of a thirty-fifth resistor R35, the other end of the thirty-fifth resistor R35 is connected with the other end of a third inductor L3, a second comparison signal input end of the voltage comparator U4 is connected with a power output end of a first voltage stabilizer U5, a comparison signal output end of the voltage comparator U4 is connected with a water leakage detection signal input end of a controller U1 and one end of a thirty-sixth resistor R36, and the other end of the thirty-sixth resistor R36 is connected with the power output end of the first voltage stabilizer U5; and the power supply end of the voltage comparator U4 is connected with the other end of the third inductor L3, and the power supply end of the voltage comparator U4 is connected with a power ground.

The indicating module comprises one or any combination of an operation indicating circuit, a fault feedback indicating circuit and a verification indicating circuit;

the operation indicating circuit comprises a seventh resistor R7, one end of the seventh resistor R7 is connected with an operation indicating output end of the controller U1, the other end of the seventh resistor R7 is connected with a base electrode of a first triode Q1, an emitting electrode of the first triode Q1 is connected with a power ground, a collector electrode of the first triode Q1 is connected with one end of a ninth wiring bar P9, the other end of the ninth wiring bar P9 is connected with one end of an eighth resistor R8, and the other end of the eighth resistor R8 is connected with the other end of a third inductor L3;

the fault feedback indicating circuit comprises a twelfth resistor R12, one end of the twelfth resistor R12 is connected with the operation indicating output end of the controller U1, the other end of the twelfth resistor R12 is connected with a base electrode of a fifth triode Q5, an emitting electrode of the fifth triode Q5 is connected with a power ground, a collecting electrode of the fifth triode Q5 is connected with one end of a tenth wiring bar P10, the other end of the tenth wiring bar P10 is connected with one end of a sixteenth resistor R16, and the other end of the sixteenth resistor R16 is connected with the other end of a third inductor L3. Connect trouble feedback pilot lamp through tenth row of connections P10, trouble feedback pilot lamp carries out all kinds of trouble instructions, for example, when liquid level detection circuit detects anhydrous, then flash red light, when the detection circuit that leaks detects when leaking, then bright red light often, when quality of water exceeds standard, filter core life-span is low then flash red light slowly.

The twenty-first resistor R20 of the verification indicating circuit is connected with the operation indicating output end of the controller U1, the other end of the twentieth resistor R20 is connected with a base electrode of a ninth triode Q9, an emitting electrode of the ninth triode Q9 is connected with a power ground, a collecting electrode of the ninth triode Q9 is connected with one end of an eleventh wiring bar P11, the other end of the eleventh wiring bar P11 is connected with one end of a twenty-fourth resistor R24, and the other end of the twenty-fourth resistor R24 is connected with the other end of a third inductor L3.

The circuit also comprises a first crystal oscillator circuit or/and a second crystal oscillator circuit;

the first crystal oscillator circuit comprises a first crystal oscillator Y1, one end of the first crystal oscillator Y1 is connected with a first crystal oscillator input end of a controller U1, one end of a thirtieth resistor R30 and one end of a third capacitor C3, the other end of the third capacitor C3 is connected with a power ground, the other end of the thirtieth resistor R30 is connected with the other end of the first crystal oscillator Y1 and one end of a fourth capacitor C4, the other end of the fourth capacitor C4 is connected with the power ground, and the other end of the first crystal oscillator Y1 is connected with a first crystal oscillator output end of the controller U1;

the second crystal oscillator circuit comprises a second crystal oscillator Y2, one end of the second crystal oscillator Y2 is connected with the input end of the second crystal oscillator of the controller U1 and one end of a fifth capacitor C5, the other end of the fifth capacitor C5 is connected with a power ground, the other end of the second crystal oscillator Y2 is connected with the output end of the second crystal oscillator of the controller U1 and one end of a sixth capacitor C6, and the other end of the sixth capacitor C6 is connected with the power ground.

The reset signal input end of the controller U1 is further connected with a reset circuit, the reset circuit comprises a first button S1, one end of the first button S1 is connected with the reset signal input end of the controller U1, one end of a forty-eighth resistor R48 and one end of a tenth capacitor C10, one end of the tenth capacitor C10 and the other end of the first button S1 are connected with a power ground, and the other end of the forty-eighth resistor R48 is connected with the power output end of a first voltage stabilizer U8. The internal working voltage end of the controller U1 is connected with one end of the first inductor L1, the other end of the first inductor L1 is connected with the power output end of the first voltage stabilizer U8, the public connection voltage end of the controller U1 is connected with one end of the second inductor L2, one end of the second inductor L2 is connected with the power ground, the power supply input end of the battery of the controller U1 is connected with one end of the thirty-fourth resistor R34, the other end of the thirty-fourth resistor R34 is connected with the anode of the battery BT1 and the cathode of the twelfth polar tube D10, the anode of the twelfth polar tube D10 is connected with the power output end of the first voltage stabilizer U8, and the cathode of the battery BT1 is connected with the power ground.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An intelligent drinking water filtering working method is characterized by comprising the following steps:

s1, starting water purification equipment, initializing the water purification equipment, and acquiring basic information of a water source and feedback information of whether each component of the equipment works normally;

s4, setting working parameters of a water body in the water taking process, and performing drinking water filtering operation through cooperative control to finish the water quality purification process;

s1 comprises the following steps: s1-1, switching on a power supply of water purification equipment, starting the water purification equipment, detecting a water leakage state through a water leakage detection sensor, if a water leakage condition exists, alarming by a buzzer alarm of the water purification equipment all the time, constantly lighting an alarm indicator lamp, displaying water leakage information on a screen, and not executing a water making process and a water taking process;

s1-2, if no water leakage condition exists, starting to detect the normally open condition of the LPS1 of the water body, judging whether the LPS1 is closed after a certain time is set, and if a water supply pipe of the water purifying equipment has water pressure, simultaneously opening a water making valve A and a flushing valve B for a plurality of times;

s1-3, detecting the state of LPS1 again, disconnecting the water supply pipe, judging whether the water supply pipe has no water pressure, enabling an alarm indicator lamp to flicker all the time, enabling a buzzer to intermittently and briefly ring for a plurality of times, displaying indication information on a screen, and displaying no primary water pressure, when the water supply pipe obtains the water pressure, acquiring a signal to be in a closed state, enabling the alarm indicator lamp to flicker for a plurality of times, displaying that the primary water pressure is normal on the screen, simultaneously closing a water making valve A and a flushing valve B for a plurality of times, detecting the state of LPS1, closing the water supply pipe, judging whether the water supply pipe has the water pressure, judging the liquid level of a water supply tank of the water purifying equipment, when the liquid level of the water supply tank is higher than a set threshold value, enabling the set threshold value to be 70% -80%, enabling the water making valve A, the flushing valve B and the LPS1 not to execute any instruction, and when the liquid level of the water supply tank is lower than the set threshold value, enabling the set threshold value to be 50% -70%, and executing a water making process 2;

s1-4, if the LPS1 of the detected water body is disconnected for more than a certain time, the alarm indicator lamp always flickers, the buzzer intermittently and briefly sounds for a plurality of times, the screen displays indication information without first-stage water pressure, when the water supply pipe obtains the water pressure, the signal is obtained to be in a closed state, the alarm indicator lamp flickers for a plurality of times, the screen displays that the first-stage water pressure is normal, and reverse osmosis cleaning is carried out; if the LPS1 is closed after a certain time is set, simultaneously opening the water making valve A and the flushing valve B for a plurality of times, and then executing S1-3;

the S2 comprises:

s2-2, executing a reverse osmosis flushing instruction, simultaneously opening a water making valve A and a flushing valve B, displaying the flushing execution time on a screen in the reverse osmosis flushing process, after executing for a plurality of times, after finishing the reverse osmosis flushing, displaying that the reverse osmosis flushing is finished on the screen, and then executing the water making process of water purifying equipment;

s2-3, if the valve A for making water and the valve B for flushing are opened simultaneously, the reverse osmosis flushing process is not executed, after waiting for a certain time, the reverse osmosis water making process is carried out, and the water making operation is carried out according to two conditions:

a, delaying to start water quality detection for a certain time, updating data, and displaying the last updated data of the water quality detection on a screen after the water level of a water supply tank reaches 100%;

b, when the water quality is detected, when the reverse osmosis value reaches a set value, the set value is 30-99, an alarm indicator lamp is started, if the alarm indicator lamp flickers, the reverse osmosis value is higher than the highest value of the set value or lower than the lowest value of the set value, and if the alarm indicator lamp does not flicker, the reverse osmosis value is within the range of the set value;

s2-4, after the water making reaches a certain time, opening a flushing valve B, not reading the water quality A data within 120S, continuing the water making process after the time is up, and reading the water quality A data; starting a plurality of reverse osmosis washing processes in the circulating water making process, starting a washing B valve after continuous water making for a certain time, and closing an inspection instruction of water quality A data until all purified liquid is purified;

s2-5, reverse osmosis flushing setting is carried out, corresponding threshold value ranges are set for the flushing times and the flushing time, the opening time and the closing time can be set, the last opening time defaults to 30 seconds, the last opening time of the water purifying equipment is set, if the flushing B valve is opened after 15 minutes of continuous water making, the flushing B valve is closed for 10 seconds after 5 seconds, the flushing B valve is opened again for 5 seconds and then closed for 10 seconds, and if the flushing B valve is opened again for 30 seconds and then closed, as long as the continuous water making is carried out in the water making process, the flushing B valve is opened after 15 minutes, the flushing B valve is closed for 10 seconds after 5 seconds, the flushing B valve is opened again for 5 seconds and then closed for 10 seconds, and the flushing B valve is opened again and closed after 30 seconds;

s2-6, when the conditions A and B are executed, if the water supply tank of the water purifying equipment reaches a 100% full state, LPS1 does not need to acquire corresponding data, after a certain time delay, a flushing valve B is opened, reverse osmosis membrane flushing operation is carried out, a reverse osmosis water making process is cancelled, a water making pump A, a water making valve A and a flushing valve B are closed, the water making process is finished, and if the water level of the water supply tank is judged to be lower than a certain threshold value which is 50% -70%, the step S2-1 is executed again;

the S3 comprises the following steps:

s3-1, in the water taking process, after the liquid level of a water supply tank is lower than a certain threshold value, the water purifying equipment is stopped, when the liquid level is higher than 5% -10%, a water taking instruction is executed, a water taking B pump and a water taking C valve are simultaneously opened, reverse osmosis water taking starts to be executed, a certain time is counted down, and if the liquid level of the water supply tank is lower than 5% -10% in the time period, the water taking B pump and the water taking C valve are simultaneously closed;

s3-2, when the liquid level is higher than 5% -10%, if a water circulation instruction is executed, after a certain time, a water taking B pump and a water quality monitoring B are started simultaneously, the water circulation instruction is displayed on a screen, after the water circulation instruction is executed for a certain time, the water circulation instruction is stopped being executed, and when the water taking B pump and the water quality monitoring B are closed simultaneously, a water quality monitoring value when the water taking B pump and the water quality monitoring B are stopped finally is displayed on the screen;

s3-3, when the liquid level is higher than 5% -10%, if an UP ascending water supply instruction is executed, when a water taking B pump, a water quality monitoring B valve and a water taking D valve are simultaneously opened, a screen displays the UP ascending water taking and the execution of a water taking countdown instruction, and when the liquid level is lower than 5% -10%, and when the water taking B pump, the water quality monitoring B valve and the water taking D valve are simultaneously closed, the screen displays a water quality monitoring value when the water taking B pump, the water quality monitoring B valve and the water taking D valve are finally stopped;

the S4 comprises the following steps:

2. The intelligent drinking water filtering operation method according to claim 1, wherein the S4 further includes:

s4-5, if the user returns to the main selection menu and presses the confirmation, the user inputs the confirmation verification code and then executes the basic menu password instruction and the function menu password instruction, and if the corresponding menu password instruction does not modify the task, the user returns to the main selection menu at intervals;

s4-6, executing a reverse osmosis washing water quality instruction, setting a reverse osmosis washing electrode coefficient, executing an instruction for changing the reverse osmosis washing electrode coefficient value, finishing entering the next execution program, executing an UP water supply water quality instruction, setting an UP water supply electrode coefficient, changing the UP water supply electrode coefficient value instruction, finishing entering the next execution program after setting, displaying an instruction during water making, modifying a working parameter instruction during water making, finishing entering the next execution program after setting, executing a circulation function instruction, modifying circulation working parameters of the water purifying equipment, finishing entering the next execution program after setting, executing a temperature compensation coefficient instruction, modifying temperature compensation working parameters, finishing entering the next execution program after setting, executing a pre-purification column alarm instruction, modifying pre-purification column alarm working parameters, finishing entering the next execution program after setting, executing a fine purification alarm instruction, modifying fine purification alarm working parameters, finishing entering the next execution program after setting, executing an ultraviolet lamp alarm instruction, modifying ultraviolet lamp alarm working parameters, and returning to a main selection menu after setting.